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' Hole Number: Sheet 5 of 18 <br /> ' HERST & ASSOCIATES, INC- AMW-30 Soil Log <br /> Northing: 2,148,062.1 Easting: 6,367,022.3 Ground Surface Elevation: 45.0 <br /> ' Project: Austin Road NCYCC Drilling Rig Type: Mud Rotary <br /> Project No.: 120091514 Method of Drilling: Boart-Longyear DB540 <br /> ' Site Location: Stockton,California Drilling Dates: January 18-22,2010 <br /> Graphic Z 4 ,> Fr <br /> Soil Description Log Notes <br /> ' 40.0 to 41.5 ft. -Clayey SILT,dry,soft,iron staining Borehole Area Air Measurements: <br /> throughout,brown(7.5YR 4/4). 14 0%LEL CHa / 0 ppm VOC <br /> ' 8 11 5 15 <br /> 41.0 1.5 <br /> 16 <br /> ' 42.0 <br /> 43.0 <br /> 44.0 <br /> ' 45.0 <br /> 45.0 to 45.5 ft. -SAND,moist,loose,fine to medium Borehole Area Air Measurements: <br /> grained,subangular,poorly sorted,mica throughout, 3 0%LEL CH / 0 m VOC <br /> dark yellowish brown(10YR 4/4). a PP <br /> 9 1=5 10 <br /> 46.0 45.5 to 46.5 ft. -Clayey SILT,dry,very stiff,brown 1.5 <br /> (IOYR 4/3). 12 <br /> ' 47.0 <br /> ' 48.0 <br /> t <br /> 49.0 <br /> ' 50.0 <br /> Drilling Contractor: Precision Sampling,Inc. <br /> Driller: Brian Johnson F72 W <br /> Helper: Mac, Steve,&Charlie <br /> ' CLAY SILT SAND GRAVEL <br /> Logged By: Leslie Keuss <br />